Validation of Storage Models Included in the Dionisio Nuclear Fuel Performance Code: Thermal Models
DOI:
https://doi.org/10.70567/mc.v41i18.95Keywords:
Pool storage, dry storage, spent nuclear fuels, DIONISIO, simulation, finite elementsAbstract
During the storage stage, spent nuclear fuels undergo different thermomechanical stresses that can compromise their integrity, given the long times involved. Experimental data on these processes is not abundant and, in many cases, only simulation codes are available to predict the evolution of these parameters due to the difficulties of carrying out representative experiments. In this work, we present new models added to the storage module of the DIONISIO fuel code, which allow the code to simulate the behaviour of the fuel in each of the storage stages. Models are presented to describe the decay heat as well as the pool and dry storage stages. All these models require validation, either with data measured in different repositories around the globe or with experiments designed to reproduce the storage conditions. This paper presents a selection of validations to ensure the reliability of the models developed within the module.
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